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authorSteven Toth <stoth@kernellabs.com>2015-03-23 15:41:03 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-05-01 07:19:34 -0300
commit8ed5e4e89c321cd7eab936517dc7e3a249299e24 (patch)
tree53946c54321875c41773228021ab384c52ef4daa /drivers/media
parent5f954b5be4bf42e85e0a204518499bda8ee2f419 (diff)
[media] saa7164: Adding additional I2C debug
Assists with debugging difficult I2C devices. Signed-off-by: Steven Toth <stoth@kernellabs.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/pci/saa7164/saa7164-api.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/media/pci/saa7164/saa7164-api.c b/drivers/media/pci/saa7164/saa7164-api.c
index 4f3b1dd18ba4..97bbd0a13d62 100644
--- a/drivers/media/pci/saa7164/saa7164-api.c
+++ b/drivers/media/pci/saa7164/saa7164-api.c
@@ -1373,7 +1373,8 @@ int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
u8 buf[256];
int ret;
- dprintk(DBGLVL_API, "%s()\n", __func__);
+ dprintk(DBGLVL_API, "%s() addr=%x reglen=%d datalen=%d\n",
+ __func__, addr, reglen, datalen);
if (reglen > 4)
return -EIO;
@@ -1434,7 +1435,8 @@ int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen,
u8 buf[256];
int ret;
- dprintk(DBGLVL_API, "%s()\n", __func__);
+ dprintk(DBGLVL_API, "%s() addr=0x%2x len=0x%x\n",
+ __func__, addr, datalen);
if ((datalen == 0) || (datalen > 232))
return -EIO;
@@ -1464,7 +1466,7 @@ int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen,
return -EIO;
}
- dprintk(DBGLVL_API, "%s() len = %d bytes\n", __func__, len);
+ dprintk(DBGLVL_API, "%s() len = %d bytes unitid=0x%x\n", __func__, len, unitid);
/* Prepare the send buffer */
/* Bytes 00-03 dest register length